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7
RESULTS

Media Type
7
texts
Availability
7
Always Available
Topics & Subjects
7
Soils
3
Fertilizers
2
Tobacco
1
Agricultural chemistry
1
Manures
1
Soil chemistry
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Collection
7
American Libraries
7
Penn State University
5
Microfilm
Creator
1
cameron, frank k. (frank kenneth), 1869-1958
1
davy, humphry, sir, 1778-1829
1
ilgen, lewis wallace
1
merkle, f. g. (frederick grover), 1892-1960
1
porter, william lyon
1
snyder, harry, 1867-1927
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Language
7
English
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